CH146773A - Process for the preparation of a dye of the anthraquinone series. - Google Patents

Process for the preparation of a dye of the anthraquinone series.

Info

Publication number
CH146773A
CH146773A CH146773DA CH146773A CH 146773 A CH146773 A CH 146773A CH 146773D A CH146773D A CH 146773DA CH 146773 A CH146773 A CH 146773A
Authority
CH
Switzerland
Prior art keywords
dye
diamino
anthraquinone
green
disulfonic acid
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH146773A publication Critical patent/CH146773A/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
    • C09B1/50—Amino-hydroxy-anthraquinones; Ethers and esters thereof
    • C09B1/52—Amino-hydroxy-anthraquinones; Ethers and esters thereof sulfonated
    • C09B1/523—N-substituted amino and hydroxy anthraquinone
    • C09B1/525—N-aryl derivatives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 142743.    Verfahren zur Herstellung eines Farbstoffes der     Antbrachinonreihe.       Es wurde gefunden, dass man einen Farb  stoff der     Anthrachinonreihe    erhält, wenn man  die     Leukoverbindung    des technischen Ge  misches der     1.8-Diamino-4.5-dioxyanthra-          chinon-3.6-disulfosäure    und der     1.5-Diamino-          4.8-dioxyanthrachinon-3.7-disulfosäure    in  wässerigem     Medium    in Gegenwart von Bor  säure mit     p-Aminophenol    erhitzt,

   wobei ein       Mol        p-Amiriopherrol    mit einem     Mol    der obigen       Anthrachinonderivate    kondensiert, und das so  erhaltene Kondensationsprodukt zum     Anthra-          chinonderivat    oxydiert. _  Der erhaltene Farbstoff bildet ein dunkles  Pulver und löst sich in organischen Lösungs  mitteln mit grünblauer Farbe auf. Er färbt       Acetatseide    in grünblauen Tönen an.  



  <I>Beispiel:</I>  5,2 Teile des technischen Gemisches der  1.     8-Diamino-4.    5 -     dioxyanthraehinon-3.    6 -     di-          sulfosäure    und der     1.5-Diamino-4.8-dioxy-          anthrachi        non-3.7-dis        ulfosäure        (Na-Salz)    werden    als Paste in 40 Teilen Wasser (inklusive  Wasser der Paste) eingetragen, mit 5 Teilen       p-Aminophenol,    1 Teil Borsäure kristallisiert  und 4,6 Teilen     Natriumhydrosulfit    versetzt  und auf 50   erwärmt.

   Nun gibt man 1 Teil  Ameisensäure konzentriert hinzu und erhitzt  unter Rühren im kochenden Wasserbad  unter Luftzutritt, bis das Produkt     wasserun-          Iö3lich    geworden ist.     Man    filtriert heiss, wäscht  heiss und trocknet.



  <B> Additional patent </B> to main patent no. 142743. Process for the production of a dye of the antbrachinone series. It has been found that a dye of the anthraquinone series is obtained if the leuco compound of the technical mixture of 1.8-diamino-4.5-dioxyanthraquinone-3.6-disulfonic acid and 1.5-diamino-4.8-dioxyanthraquinone-3.7-disulfonic acid in aqueous Medium heated in the presence of boric acid with p-aminophenol,

   wherein one mole of p-amiriopherrol condenses with one mole of the above anthraquinone derivatives, and the condensation product thus obtained is oxidized to the anthraquinone derivative. _ The dye obtained forms a dark powder and dissolves in organic solvents with a green-blue color. He dyes acetate silk in green-blue tones.



  <I> Example: </I> 5.2 parts of the technical mixture of the 1,8-diamino-4. 5 - dioxyanthraehinone-3. 6 - disulfonic acid and the 1.5-diamino-4.8-dioxy-anthrachi non-3.7-disulfonic acid (Na salt) are added as a paste in 40 parts of water (including the water of the paste), with 5 parts of p-aminophenol, 1 Part of boric acid crystallizes, 4.6 parts of sodium hydrosulfite are added and the mixture is heated to 50%.

   1 part of formic acid is then added in concentrated form and the mixture is heated in a boiling water bath while stirring, with the addition of air, until the product has become insoluble in water. It is filtered hot, washed hot and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Farb stoffes der Anthrachinonreihe, dadurch ge kennzeichnet, dass man die Leukoverbindung des technischen Gemisches der 1.8-Diamino- 4. 5-dioxyarithrachinon-3. 6 - disulfosäure und der 1.5-Diamino-4.8-dioxyanthrachirion-3.7- disulfosäure in wässerigem Medium in Gegen wart von Borsäure mit p-Aminophenol erhitzt, PATENT CLAIM: Process for the production of a dye of the anthraquinone series, characterized in that the leuco compound of the technical mixture of 1.8-diamino-4. 5-dioxyarithraquinone-3. 6 - disulfonic acid and 1.5-diamino-4.8-dioxyanthrachirion-3.7-disulfonic acid heated with p-aminophenol in an aqueous medium in the presence of boric acid, wobei ein DZol p-Aminopbenol mit einem Mol der obigen Anthrachinonderivate kondensiert, und das so erhaltene Kondensationsprodukt zum Anthrachinonderivat oxydiert. Der erhaltene Farbstoff bildet ein dunk les Pulver und löst sich in organischen Lö- sungsmitteln mit grünblauer Farbe auf. Er färbt Acetatseide in grünblauen Tönen an. wherein a DZol condenses p-aminopbenol with one mole of the above anthraquinone derivatives, and the condensation product thus obtained oxidizes to the anthraquinone derivative. The dye obtained forms a dark powder and dissolves in organic solvents with a green-blue color. He dyes acetate silk in green-blue tones.
CH146773D 1928-12-22 1928-12-22 Process for the preparation of a dye of the anthraquinone series. CH146773A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH146773T 1928-12-22
CH142743T 1930-04-17

Publications (1)

Publication Number Publication Date
CH146773A true CH146773A (en) 1931-04-30

Family

ID=25714114

Family Applications (1)

Application Number Title Priority Date Filing Date
CH146773D CH146773A (en) 1928-12-22 1928-12-22 Process for the preparation of a dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH146773A (en)

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